Question

Find the area of shaded region

Answer 1

Answer: please see in pic

Here

In fig

Given -

Diameter of bigger semicircle= 28 cm

Hence radius = 28/2=14 cm

Now the radius of bigger semicircle is the diameter of small semicirclessemicircles

Hence

Radius= 14/2

= 7 cm

Now area

Please see in

Hope it helps

Thanks

Answer 2

Answer:

Step-by-step explanation:

In this question there 3 circles one is with the diameter of 28cm and another two are the diameter of 14 cm.

Indication of circle by the B1 (Big) and S1-S2 (Small) circles;

Total area is= Area of (B1+S1+S2)

Area of B1=$\pi14^{2}$,

Area of S1= Area of S2=$\pi7^{2}$

So total area is=$\pi14^{2}$+$\pi7^{2}$+$\pi7^{2}$

By solving this we get ($\pi =22/7$)

2*22(14+7)=924cm^2